Integrated: 8360664: Null pointer dereference in src/hotspot/share/prims/jvmtiTagMap.cpp in IterateOverHeapObjectClosure::do_object()

[Artem Semenov]

On Thu, 26 Jun 2025 13:24:31 GMT, Artem Semenov <asemenov at openjdk.org> wrote:

> The defect has been detected and confirmed in the function ```IterateOverHeapObjectClosure::do_object()``` located in the file ```src/hotspot/share/prims/jvmtiTagMap.cpp``` with static code analysis. This defect can potentially lead to a null pointer dereference.
> 
> The pointer ```oop o``` is passed to the constructor of the CallbackWrapper class, where it is dereferenced without a null check.

This pull request has now been integrated.

Changeset: e9a43416
Author:    Artem Semenov <asemenov at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/e9a434165a6ec07cde0429c7f9823bbc5dab7857
Stats:     4 lines in 1 file changed: 2 ins; 0 del; 2 mod

8360664: Null pointer dereference in src/hotspot/share/prims/jvmtiTagMap.cpp in IterateOverHeapObjectClosure::do_object()

Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Artem Semenov <savoptik at altlinux.org>.

Reviewed-by: sspitsyn, amenkov, cjplummer

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PR: https://git.openjdk.org/jdk/pull/26002